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None Help efficiencies on gam-x detector is 30% less than stimulation on TestEm3 

Forum: Event and Track Management
Date: 05 Nov, 2004
From: micheal <micheal>

Hello,
       I'm using a modified /examples/extended/em/testEm3 and testem4
where a solid HPGe cylindrical of length = 7.66cm and r=3.025cm. with 
a outer al shell of 1mm. the stimulation of this detector gave .71% 
efficiency of a 662 keV gamma at 8.66 cm in front of detector. However,
measurement of the gam-x detector at same distance gave 0.54%. This 
means that stimulation gave 30% more than measured.

can anyone help?

in PrimaryGeneratorAction.cc ------------------------------ I have particleGun->SetParticlePosition(G4ThreeVector(0.00*cm,0.0*cm,12.49*cm));

which is 8.66cm + deltaz where deltaz = 3.83cm

-------------------------------------------------------------- -------------------------------------------- micro file gaves

# $Id: run01.mac,v 1.12 2004/06/16 10:35:41 maire Exp $
#
# Macro file for "exampleN03.cc" 
# (can be run in batch, without graphic)
#
#Compton + PhotoElectricEffect; Gamma 0.662 Mev
#
/control/verbose 2 /run/verbose 2
#
#/testem/phys/addPhysics  g4v52
/testem/phys/addPhysics standard

/testem/phys/setGCut 0.5 cm /testem/phys/setECut 0.5 cm

# /run/initialize

/process/eLoss/integral false /process/eLoss/StepFunction 0.183 170 micrometer /gun/particle gamma /gun/energy 662. keV /testem/histo/setFileName g.paw /testem/histo/setHisto 0 100 000. 1000. keV /testem/histo/setHisto 1 100 000. 1000. keV

/testem/event/printModulo 5000

#
#/run/beamOn 1000000

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